/*ident	"@(#)ctrans:incl/generic.h	1.1.6.2" */
/**************************************************************************
			Copyright (c) 1984 AT&T
	  		  All Rights Reserved  	

	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T
	
	The copyright notice above does not evidence any   	
	actual or intended publication of such source code.

*****************************************************************************/

/* modified for GNU gcc compiler by Steve Langer */
/* and the Sun CC compilers are now ANSI, but don't define __ANSI_CPP_ ? */

#ifndef GENERICH

#define GENERICH 1


/* macros to paste tokens together to form new names */
/* BSD and SystemV cpp's have different mechanisms for pasting tokens
   together:  worse yet, suns run under BSD but have SYSV mechanism.
   ANSI C has defined a new way.
*/

#if defined(__ANSI_CPP__) || defined(__GNUG__) || defined(sun)
/* ANSI C preprocessors will not expand the arguments to a macro;
 * so we need to add a level of indirection to allow macro expansion of
 * arguments.  (Reiser preprocessors allowed the first arg to be expanded;
 * this method will allow both to be expanded, which is better than none.)
 */
#define name2(a,b)      _name2_aux(a,b)
#define _name2_aux(a,b)      a##b
#define name3(a,b,c)    _name3_aux(a,b,c)
#define _name3_aux(a,b,c)    a##b##c
#define name4(a,b,c,d)  _name4_aux(a,b,c,d)
#define _name4_aux(a,b,c,d)  a##b##c##d

#else 
#ifdef OLDsun
/*System V way: although BSD is true*/ /* ???? */
#define name2(a,b)	a/**/b
#define name3(a,b,c)	a/**/b/**/c
#define name4(a,b,c,d)	a/**/b/**/c/**/d
#else
#ifdef  BSD
/*BSD way:*/

#define name2(a,b) a\
b
#define name3(a,b,c) a\
b\
c
#define name4(a,b,c,d) a\
b\
c\
d

#else
/*System V way:*/
#define name2(a,b)	a/**/b
#define name3(a,b,c)	a/**/b/**/c
#define name4(a,b,c,d)	a/**/b/**/c/**/d
#endif
#endif
#endif

#define declare(a,t) name2(a,declare)(t)
#define implement(a,t) name2(a,implement)(t)
#define declare2(a,t1,t2) name2(a,declare2)(t1,t2)
#define implement2(a,t1,t2) name2(a,implement2)(t1,t2)


extern int genericerror(int,char*);
typedef int (*GPT)(int,char*);
#define set_handler(generic,type,x) name4(set_,type,generic,_handler)(x)
#define errorhandler(generic,type) name3(type,generic,handler)
#define callerror(generic,type,a,b) (*errorhandler(generic,type))(a,b)
#endif

